Hose-coupling



(N Model.)

. A. L. BAILEY.

HOSE' 'GOUPLING- No. 536,774. Patented Apr. 2, 1895.

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UNITED YSTATES PATENT OFFICE.

f ALDEN L. BAiLEY, oF sT. JoHNsBURY, vERMoNT.

Hos'E-oouPLlNc.

SEECIFICATION forming part of Letters Patent No. 536,774,0lated April 2, 1895. Application filed July Z1, 1894- Serial No. 518,287. (No model.)

To a/ZZ whom if may concern:

Be itknown that I, ALBEN L. BAILEY, a @itt zen of the United States, residing at St. lohns-l y of the other.

Theinvention consists, broadly, in the retractile coupling-tongues, and in the novel means for tightening the same, as pointed out in the following specification and claims, and clearly illustrated in the drawings, accompanying and forming partY of the same, of whichy Figure 1, is a longitudinal section, showing the sections in position, ready to bercoupled. Fig. 2, is a similar View, showing the sections as when coupled. Fig. 3, is a cross section. Fig. 4, is a detached elevation of my improved grooved, and threaded collar, which receives the coupling-tongues.

Corresponding parts are designated by a similar reference letter in all the views.

A-A, are coupler-sections, to which the exible hose may be attached in the ordinary manner.

B-B, are sliding collars, having each a pair of tongues b--h, formed integral with, and projecting from said collars at points diametrically opposite; the outer surface of Ysaid tongues being on a plane with that of said collars, while their inner surface represents a larger diameter than the bore of the said collars, thus forming the shoulder b', as shown.

The diameters of the outer surface of the coupler-sections vary, as will be seen at d, of and d2. That shown at a, forms a bearing for the collars B-B, that shown at a', forming a stop for limiting the forward movement of said collars, while that shown at a2, forms a bearing for the tongues b- I-b, as well as a stop for the forward end of a spring C, which is made of helical form and mounted, (one on each of the coupler-sections) underneath said tongues, and bearingat its other end against said collars. By this means the coupling tongues, which otherwise would be constantly exposed to the danger of becoming broken, or bent, from careless handling, are for the most part, normally concealed or drawn in, and back of the uniting faces of the sections A--A, which when disconnected, thus present a smooth surface.

A stopcollar Dis secured to each section A, which limits the movement of the collars B, when the coupler-sections are disconnected.

A collar or sleeve E, having a smooth bore and an exterior thread, is mounted upon each of the collars B, and secured thereon with a limited amount of play both longitudinally and rotatively, as shown in Figs. l, 3, and 4, and an annular groove e, is formed in its interior, near its outer end, and slots e', conneet said groove with the outer end of said sleeve. These slots e are placed at points diametrically opposite in the end of each sleeve, and form a passage way for the projections b2, (of either tongue 5,) to effect an entrance to the groove e. In order that the sleeves E, may be moved sufficiently in a rotative course to carry the projections b2, of the cou plingtongues past the slots c', so that they shall be retained in the groove e, said sleeve is movably attached to the collar B, by means of one or more pins b3, placed in collar B, at the proper point to enter corresponding slots e2, which are made slightly wider than the pins in order to facilitate the entrance and movement of the said projections b2 in said groove e.

An adjusting nut F, having a tlangef, at its rear end, is threaded to fit the sleeve E, and after placing the sections A-A, face to face said nuts are drawn toward each other, which enter the tongues of each section, into the coupling-ring or sleeve E, of the other section, and then by giving said nuts a slight turn in opposite directions, the sleeve E, is thus rotated sufficiently to catch the projections 62, of the tongues in the groove e, and the further rotation of the nut F, by the action of its flangejagainst the end of the collar B, causes the coupling-sleeves E, to move backward, or in a direction away from each other, thereby drawing the gaskets S, of the coupler-sections closely together.

The spring C, may, if desired, be omitted,

IOO

and the collar B, rigidly secured to the coupler-section With the tongues b, extending the proper distance beyond the face of thesaid Sections7 but I prefer a construction in which the tongues o o, shall be normally out of danger of accidental injury.

Having described my improvements, what .I claim as my invention isl. In a hose coupling composed of duplicate parts or sections, each section being provided with tongues having projections on their outside,a longitudinally and rotatively movable sleeve having an internal annular groove near its outer end and slots connecting said groove with said outer end, said sleeve being provided with external threads and a nut threaded thereto, and having a fiange at its rear adapted to bear against a suitable shoulder for making a tight joint of said coupler-sections.

2. In a hose coupling composed of duplicate sections, each section being provided with re tractile tongues having projections on their outside, said tongues being normally flush,or nearly so, with the coupling face ot` said sections, alongitudinally and rotatively movable sleeve having an internal annular groove near its outer end, and slots connecting said groove with said outer end for the entrance of the tongues of either section, said sleeve being provided with external threads, and a nut threaded thereto having a flange at its rear end adapted to bear against a ring or collar from which said tongues project, and a ring or collar adapted to limit the rearward movement of the tongues, all substantially for the purpose set forth.

3. In ahose coupling composed of duplicate sections, suitable spring-actuated coupling tongues having a limited movement, a 1ongitudinally` and rotatively movable sleeve mounted upon said tongues, having an internal annular groove near its outer end, and slots connecting said groove with said outer end for the entrance ot' the tongues of either section, and a nut threaded to said sleeve and having a flange at its rear adapted to bear against said spring-actuated coupling tongues, substantially for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

GILBERT E. WooDs, HARRY M. NELSON. 

